Embroidery-trimming machine.



G. L. BOURQUIN & R. LOEB.

EMBROIDERY TRIMMING MACHINE.

APPLICATION FILED NOV. 18, 1909.

1 9 143,884, Patented June 22, 1915.

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G. L. BOURQUIN (Q R. LOEB.

EMBROIDERY TRIMMING MACHINE.

APPLICATION FILED NOV. 18, 1909.

Patented 1m 22, 1915.

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G. L. BOURQUIN & R. LOEB.

EMBROIDERY TRIMMING MACHINE.

APPLICATION FILED NOV. I8, I909. LI&3,@84

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Patented June 22, 1915.

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GUSTAVE LOUIS BOURQUIN, OF PERKASIE, PENNSYLVANIA, AND RUDOLF LOEB, OF CAMDEN, NEW JERSEY, ASSIGNORS TO RUDOLF LOEB, OF CAMDEN, NEW JERSEY.

EMBROIDERY-TRIMMING MACHINE.

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Specification of Letters Patent.

Patented June 22, 1915.

Application filed November 18, 1909. Serial No. 528,725.

To all whom it may concern Be it known that we, GUsTAvn LOUIS BOUR- QUIN and RUDoLr Lone, citizens of the United States, and residents of Perkasie, Bucks county, Pennsylvania, and Camden, Camden county, New Jersey, respectively, have invented certain Improvements in Embroidery-Trimming Machines, of which the following is a specification.

Our invention relates to mechanical means for cutting or trimming embroidery edging; the machine forming the subject of our invention being particularly adapted for cutting or separating that form of embroidery known as Hamburg edging from strips or sections of material containing a number of edgings as such form of embroidery is usually made. As is well known, such embroidery comprises a series of curved scallops formed by means of button hole or other stitching in the body of a sheet or strip, which stitching has the effect of providing a raised surface consisting of a number of curved projections extending in a relatively straight line which projections aresubstantially hard or firm and of an ornamental character. As noted, this form of embroidery is manufactured in the form of a strip or sheet containing a plurality of embroidered'lines subsequently forming edgings, and when such material is used as a trimming for garments, or for other purposes, it is necessary to separate the embroidered edge from the material beyond such edge and forming the support for next embroidered edge, and the object of our invention is to provide mechanical means for accomplishing this work.

In the accompanying drawings, we have shown a machine capable of carrying out the object of our invention, in which:

Figure 1, is a plan view of apparatus embodying our invention and capable of cutting or trimming embroidery such as Hamburg edging; Fig. 2, is a front elevation of the same; Fig. 3, is a sectional view on the line aa, Fig. .1; Fig. 1, is a sectional view on the line bb, Fig. 1; Fig. 5, is a view illustrating a detail of our invention, and Fig. 6, is a view illustrating a form of embroidered fabric capable of being trimmed by the machine forming the subject of our invention.

The essential feature of our invention consists of a horizontally reciprocating knife adapted to out or shear the material containing the embroidered or stitched edges directly adjacent one of said embroidered or stitched edges. This knife is carried by suitable means mounted so as to be reciprocated and said knife is arranged to work diagonally with respect to the line of movement of the material to be trimmed, being so disposed that it cuts on the upper side of the fabric directly adjacent one of the embroidered or stitched edges of the same and completely removes the strip of embroidery from the rest of the fabric without leaving an unsightly raw edge and without damaging in any way said embroidered or stitched edge.

In the drawings herewith, 1 represents a suitable framework or support having a bed plate 2 upon which the operating mechanism is mounted, and av supplemental bed or table 8 over which the embroidered fabric is passed from a suitable supply roll 4: carried by the frame of the machine. l pon said table 8, the cutting or shearing of the embroidered edge from the rest of the fabricis accomplished.

In the present embodiment of our invention, we have shown a machine capable of cutting or trimming a plurality of edgings, but it will be understood that the cutting mechanism and the means for operating the same are exactly alike in each instance, and hence the description is directed to but a single set of co-acting elements for effecting the desired result.

Slidably mounted in ways 5 formed in a suitable bracket '6 carried on the bed plate 2 of the machine is a combined guide and guard 7 for a cutting blade or knife 8. This cutting blade is in the form of a very thin strip of metal, wound upon a hub 10 carried by a spindle 11 journaled in a suitable sup port 12 carried by said guide 7 the carrying means for said knife having a fixed relation with respect to the guide. The guard and support carrying the cutting blade is arranged to be reciprocated in ways 5 in said bracket 6; motion for this purpose being imparted by means of an arm 15 connected to an eccentric 16 driven by a shaft 17 suitably journaled on the bed plate 2 and driven by a belt 18 and pulley 19; the belt extending from a pulley 20 journaled on the frame of the machine and suitably driven. The arm 15 is secured to the rear end of the guard or guide 6 before referred to, and the eccentric has a strap with a rounded surface to engage a hub with a similar surface; such elements providing substantially a ball and socket joint. 7

At the same time that reciprocating motion is imparted to the guard or guide 7 the knife or blade 8 is fed gradually forward so that its activecutting edge is being constantly renewed to insure the proper trimming of the embroidery edging.

T he driving means consists of a shaft 21, with universal couplings 21 connecting it to a shaft 22 having a gear wheel 23 which in turn is driven by a pinion 24 mounted so as to receive movement from a. countershaft 25 through the medium of a gear wheel 26 and pinion 27. The main driving shaft is vertical and is shown at 28, carrying a worm 29 meshing with a worm wheel 29 whereby movement may be imparted to a shaft or spindle 30 journaled on the bed-plate 2 and having a pinion 31 meshing with a gear wheel 32 mounted on a shaft or spindle 33 having a pinion 34 meshing with a gear wheel 35 on said shaft 25. The movement of the shaft 25 is so proportioned that the feed of the knife'is very gradual, and such movement is transmitted to the knife by meansofpinions 36, 37, 38 and 39, driving a pair of rollers 40 and 41 between and by which the knife blade is fed. The knife blade is wound upon its hub under tension and suitably secured thereto, and as it is drawn ofi' by the-friction rolls 40 and 41 the force of such tension tends to keep it wound upon the hub.

The fabric is delivered across the table 3, preferably under tension, and the knife blade 8. as it is reciprocated by the guard or guide 7 cuts directly against the embroideredor stitched edge of the edging; such knife cutting on the upper side of the fabric against the beveled edge of a plate 45 mounted on the table 3 and having such beveled edge in absolute parallelism with the edge of the cutting blade. This plate, which is'adjustable, forms the anvil with which the knife blade coacts. As the work progresses the main body of the fabric containing the embroidered edges to be cut is wound upon a roller 46, while the cut or trimmed edge may pass loosely into a suitable receptacle. Tension may be provided for the roller 46, consisting of a weighted roller .47 and a friction roller 48 adjacent thereto; the friction roller being mounted on a driven shaft 49 and imparting movement to the roller 47 which is imparted in turn to the roller 46. The roller 48 is driven from the shaft 25 by means of the pinions 50, 51, 52, 53, 54, 55, 56, 57 and 58, as clearly indicated in Fig. 3.

The present machine, as explained, has been devised to cut or trim two strips of embroidered edging at the same time, but it will be understood that we may employ a single set of cooperating trimming or cutting devices, or a gang of the same, driven in the same or in substantially the same manner as herein described.

The knife which we employ is continuous in length, and the object of this is to insure a suitable cutting edge which is uniformly of the same character throughout the length of said knife. Preferably both faces of the strip of material forming the knife are beveled .to form this cutting edge. The knife lies between the walls of the guard or guide with its edge in absolute parallelism therewith and with the plate 45; the guard being cut away at 60 at the point where the knife acts. When such knife is brought into engagement with the fabric, the cutting or trimming of the same from the embroidered edge is assured without any damage to such edge.

\Ve claim:

1. In an embroidery cutting or trimming machine, the combination of a suitable work table, means for feeding the fabric across the same, a continuous knife blade mounted for engagement with the work, said knife having its cutting edge horizontally disposed and reciprocable in substantially the same plane as the material operated upon, and means for reciprocating said knife blade.

2. In an embroidery cutting-or trimming machine, the combination of a suitable work table, means for feeding the fabric across the same, a continuous knife blade mounted diagonally with respect to the work, a shear plate coacting therewith, means for reciprocating said knife blade. and means for carrying away the work after it has been cut.

'3. In a cutting or trimming machine for removing waste from embroidered fabric, the combination of a suitable frame, a work table carried thereby, means for feeding work across the same, a cutting blade, a guide for said blade, means coacting therewith to remove waste adjacent an embroidered edge, and means for reciprocating said guide.

4. In an embroidery cutting or trimming machine, the combination of a. suitable frame, a work table carried thereby, means for feeding fabric containing embroidered edges across the same, a cutting blade, a guide for said blade, means for reciprocating said guide, and a fixed shear plate carried by said table in parallelism with the cutting edge of said cutting blade.

5. In an embroidery cutting or trimming machine, the combination of a work table !OV6I' which the fabric to be trimmed is passed, a guide, a continuous blade disposed in said guide, means for reciprocating the guide across said table, and means for feeding the knife through the guide.

6. In an embroidery cutting or trimming machine, the combination of a work table over which the fabric to be trimmed is passed, a guide, a continuous blade disposed in said guide, means for reciprocating the guide over said work table, and means for gradually feeding the knife through the guide, such feed taking place during the reciprocation of the guide independently of such reciprocation.

7. The combination of a driven shaft, an eccentric carried thereby, a slide-way, a guide arm having a portion reciprocable in said slide-way, a knife carried by'said guide arm, and a connection between said eccentric and guide arm, said eccentric having a curved surface permitting lateral as well as reciprocatory movement of said connection.

8. T he combination of a driven shaft, an eccentric carried thereby, a slide-way diagonally disposed with respect to said shaft, a diagonally disposed guide arm having a portion reciprocable in said slide-way, a knife carried by said guide arm, and a connection between said eccentric and guide arm lying substantially at right angles to said shaft,

said eccentric having a curved surface permitting lateral as well as reciprocating movement of said connection whereby the straight reciprocation of the eccentric may be diagonally directed.

9. A device of the character described, comprising a reciprocable cutter, a stationary opposing member mounted longitudinally thereof and forming a slot therewith of uniform width through which the background of the embroidery is passed, means to reciprocate the cutter parallel to and longitudinally of the opposing member, and means for feeding the cutter simultaneously with the reciprocation thereof.

10. A device of the character described, comprising a reciprocable cutter, a stationary opposing member mounted longitudinally thereof and forming a slot therewith of uniform width through which the back ground of the embroidery is passed, means to adjust the opposing member relatively to the cutter to increase or diminish the width of the slot, means to reciprocate the cutter parallel to and longitudinally of the opposing member, and means for feeding the cutter simultaneously with the reciprocation thereof.

11. A device for cutting embroidery background along the embroidered edge, comprising a stationary member, a knife carrying member movable longitudinally of and parallel to the stationary member, a knife blade mounted on the carrying member, and an adjustable member mounted on the stationary member cooperating with the blade to form a slot through which the background of the embroidery is passed, and means for feeding said knife blade simultaneously with the reciprocation thereof.

In testimony whereof, we have signed our names to this specification, in the presence of two subscribing witnesses.

GUSTAVE LOUIS BOURQUIN. RUDOLF LOEB.

Witnesses:

W. B. BEssER, JAs. W. REANEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

